1. Safety
RA
TH
PR
RZ
HD
SW
1m
SW
SW
SW
HD
SH
RA TH
RZ
SH
(B) TOP VIEW(A) SIDE VIEW
Image 1-1
ASideview.
B Top view.
RA Restricted Access location (boot area of projector).
PR Projector.
TH Theater.
RZ Restriction Zone in the theater.
SH Separation H eight. Must be minimum 2 meter.
SW Separation Width. Must be minimum 1 meter.
Based on national requirements, no person is allowed to enter the projected beam within the zone between the projection lens and
the related hazard dis tance (HD). This shall b e ph
ysically impossible by c reating sufficient separation height or by placing barriers.
The minimum separation height takes into acc ount the surface upon which persons are assum ed to stand.
On image 1-1 a typical setup is d isplayed. It m ust be verified by the installer if these m inimum requirements are met. If required a
restricted zone (RZ) in the theater m ust be established. This can be do ne by using physical barrier, like a red rope a s illustrated in
image 1-2.
PR
Image 1-2
1.4 HD in function of the lens Throw Ratio (TR)
TR (Throw Ratio)
The ratio of the distance to the screen (throw) to the screen width.
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